<html>
<head>
	<meta charset="UTF-8">
	<meta content="IE=edge" http-equiv="X-UA-Compatible">
	<meta content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no, width=device-width" name="viewport">
	<title>3353：[ioi2009]Archery</title>
	<!-- css -->
	<link href="../css/base.min.css" rel="stylesheet">
	<link href="../css/project.min.css" rel="stylesheet">
	
	<!-- favicon -->
	<!-- ... -->
</head>
<body class="page-brand">
	<header class="header header-transparent header-waterfall ui-header">
		<ul class="nav nav-list pull-left">
			<li>
				<a data-toggle="menu" href="#menu">
					<span class="icon icon-lg">menu</span>
				</a>
			</li>
		</ul>
		<a class="header-logo header-affix-hide margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[ioi2009]Archery</a>
		<span class="header-logo header-affix margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[ioi2009]Archery</span>
	</header>
	<nav aria-hidden="true" class="menu" id="menu" tabindex="-1">
		<div class="menu-scroll">
			<div class="menu-content">
				<a class="menu-logo" href="../index.html">BZOJ离线题库</a>
				<ul class="nav">
					<li>
						<a class="waves-attach" data-toggle="collapse" href="#problems">题目</a>
						<ul class="menu-collapse collapse in" id="problems">
							<li>
								<a class="waves-attach" href="../index.html">主页</a>
							</li>
							<li>
								<a class="waves-attach" href="../list.html">题目列表</a>
							</li>
						</ul>
					</li>
					<li>
						<a class="collapsed waves-attach" data-toggle="collapse" href="#about">关于</a>
						<ul class="menu-collapse collapse" id="about">
							<li>
								<a class="waves-attach" href="../about.html">关于此项目</a>
							</li>
						</ul>
					</li>
					
				</ul>
			</div>
		</div>
	</nav>
	<main class="content">
		<div class="content-header ui-content-header">
			<div class="container">
				<h1 class="content-heading">
                [ioi2009]Archery                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
		</div>
		<div class="container">
			<section class="content-inner margin-top-no">
				<div class="row">
					<div class="col-lg-13 col-md-13">
						<div class="card margin-bottom-no">
							<div class="card-main">
								<div class="card-inner">
									
                                <h3>题目描述</h3><p><div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">一场箭术比赛规则如下所示。在一条直线上排着N个靶子，靶子从左到右序号依次为从1到N。同时有2N个选手，在比赛的任何时刻，同一个靶位上都有两个选手。比赛的每一轮按照如下规则进行：</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">在同一个靶位的两位选手比赛一场决出胜者，然后所有选手按照如下规则移动：</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">在2到N号靶位上的胜者移动到他们的左侧的靶位（即分别移动到1到N-1号靶位）</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">在2到N号靶位上的负者，以及1号靶位上的胜者，停留在同一个靶位。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">1</span><span style="color: #555555">号靶位上的负者移动到N号靶位。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">这场比赛持续R轮（R&gt;=2N）。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">你作为唯一一个准时到达的选手（其他选手已经提前到达了并且排成了一行），你现在要做的就是插入这个队伍，在你进入队伍后，队列中前两个选手将对应一号靶位，接下来两个将对应二号靶位，以此类推。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">所有的选手（包括你）都用一个数值衡量技术水平，在同一个靶位上，数值比较小的选手会成为胜者，没有两个选手的技术水平相同。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">在了解了所有选手的技术水平之后，你需要找到一个位置插入使得你最终对应的靶位序号尽量小，在此前提下，你希望你初始时对应的靶位序号尽量大。</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><strong><span style="color: #555555">数据规模</span></strong></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">1&lt;=N&lt;=200000</span></span></div>
<div style="margin: 12pt 0cm"><span style="font-size: medium"><span style="color: #555555">2*N&lt;=R&lt;=1000000000</span></span></div>
<p></p></p><hr/><h3>输入格式</h3><p></p><hr/><h3>输出格式</h3><p></p><hr/><h3>样例输入</h3><pre>4 8
7
4
2
6
5
8
1
3
</pre><hr/><h3>样例输出</h3><pre>3
</pre><hr/><h3>提示</h3><p>没有写明提示</p><hr/><h3>题目来源</h3><p>没有写明来源</p>
								</div>
							</div>
						</div>
					</div>
				</div>
				
				
			</section>
		</div>
	</main>

	<div class="fbtn-container">
		<div class="fbtn-inner">
			<a class="fbtn fbtn-lg fbtn-brand-accent waves-attach waves-circle waves-light waves-effect" data-toggle="dropdown" aria-expanded="true"><span class="fbtn-text fbtn-text-left">Menu</span><span class="fbtn-ori icon">apps</span><span class="fbtn-sub icon">close</span></a>
			<div class="fbtn-dropup">
				<a class="fbtn fbtn-brand waves-attach waves-circle waves-light waves-effect" href="../list.html" target="_self"><span class="fbtn-text fbtn-text-left">题目列表</span><span class="icon">menu</span></a>
				<a class="fbtn fbtn-green waves-attach waves-circle waves-effect" href="../index.html" target="_self"><span class="fbtn-text fbtn-text-left">返回主页</span><span class="icon">home</span></a>
				<a class="fbtn waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/submitpage.php?id=3353" target="_blank"><span class="fbtn-text fbtn-text-left">提交代码</span><span class="icon">send</span></a>
				<a class="fbtn fbtn-orange waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/wttl/wttl.php?pid=3353" target="_blank"><span class="fbtn-text fbtn-text-left">试题讨论</span><span class="icon">chat</span></a>
				
			</div>
		</div>
	</div>

	<!-- js -->
	<script src="../js/jquery.min.js"></script>
	<script src="../js/base.min.js"></script>
	<script src="../js/project.min.js"></script>
</body>
</html>